Mermaid easel



FIG. 1 is a front view of a mermaid easel showing our new design;

FIG. 2 is a perspective view thereof; and,

FIG. 3 is a rear view thereof.

The hardware and support for the mermaid easel is shown in broken lines for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a mermaid easel, as shown and described. 